picBot.php

<?php
function get_http_response_code($url) {
    $headers = get_headers($url);
    return substr($headers[0], 9, 3);
}
// Defining the basic cURL function
    function curl($url) {
        // Assigning cURL options to an array
        $options = Array(
            CURLOPT_RETURNTRANSFER => TRUE,  // Setting cURL's option to return the webpage data
            CURLOPT_FOLLOWLOCATION => TRUE,  // Setting cURL to follow 'location' HTTP headers
            CURLOPT_AUTOREFERER => TRUE, // Automatically set the referer where following 'location' HTTP headers
            CURLOPT_CONNECTTIMEOUT => 120,   // Setting the amount of time (in seconds) before the request times out
            CURLOPT_TIMEOUT => 120,  // Setting the maximum amount of time for cURL to execute queries
            CURLOPT_MAXREDIRS => 10, // Setting the maximum number of redirections to follow
            CURLOPT_USERAGENT => "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1a2pre) Gecko/2008073000 Shredder/3.0a2pre ThunderBrowse/3.2.1.8",  // Setting the useragent
            CURLOPT_URL => $url, // Setting cURL's URL option with the $url variable passed into the function
        );
         
        $ch = curl_init();  // Initialising cURL 
        curl_setopt_array($ch, $options);   // Setting cURL's options using the previously assigned array data in $options
        $data = curl_exec($ch); // Executing the cURL request and assigning the returned data to the $data variable
        curl_close($ch);    // Closing cURL 
        return $data;   // Returning the data from the function 
    }

// Defining the basic scraping function
    function scrape_between($data, $start, $end){
        $data = stristr($data, $start); // Stripping all data from before $start
        $data = substr($data, strlen($start));  // Stripping $start
        $stop = stripos($data, $end);   // Getting the position of the $end of the data to scrape
        $data = substr($data, 0, $stop);    // Stripping all data from after and including the $end of the data to scrape
        return $data;   // Returning the scraped data from the function
    }

function getPic( $name ){
    $before = microtime(true);
    $uName = urlencode($name);
    
    $html_sc = curl('http://www.last.fm/music/'.$uName);
    $html = scrape_between($html_sc, "<section class=\"g8 artist-images\">", "</section>");
    
    $dom = new DOMDocument();
    @$dom->loadHTML( $html ); 
    $xpath = new DOMXPath($dom);
    $tableCol = $xpath->query('//img[@*]');
    $url;
    foreach ($tableCol as $col){
        if ($col->hasAttribute('itemprop')){
            if($col->getAttribute('itemprop') == "image"){
                return $col->getAttribute('src');
            }
        }
    }
    return 'pics/concert.jpg';
}
?>